condition mean min max 4 h after light 10.952645 9.58819 12.3171 8 h after light 11.9746 11.6872 12.262 12 h after light 10.37805 10.25 10.5061 4 h after dark 18.368949999999998 16.5246 20.2133 8 h after dark 17.306800000000003 17.2118 17.4018 12 h after dark 14.19875 13.881 14.5165